USGS Professonal Paper 1096 - IRIS

TEXAS
LubboCk, IX
GENERAL INFORMATION
Operated by:
Address:
Texas Technological University
Seismological Observatory
Texas Technological UniversiLy
P.O. Box 4109
Lubbock, TX 79409
Telephone: 807-742-3116
Address to obtain records:
SIlE INFORm:lION
WWSSN records:
National Geophysical ,nd Solar-Terrestrial Data Center
NOAA/EDS, 062
Boulder, CO 80302
Code
Station
name
Latitude Longitude Elev Date Date
(deg N ) (deg 1!1 ) (.oten) opened c] ased
Foundation; geologic
'ge
LOB Lubbock----------------- 33.5833 101.8667 979 6/48 DEen-- Caliche; Pleistocene.
JCT Junction---------------- 30.4794 99.8022 591 3/10/65 --do-- Edwards Limestone; Early Cretaceous.
INSTRUMENTATION
Seismometer Galva Type Magnification
Code Type Component To(sec) Tg(sec) recording ,t T
0
Remarks
LOB Benioff-------------- Z,NS,EW 1.0 0.75 Photo paper 25 K WW"SSN.
Sprengnether--------- Z,NS,EW 15.0 100.0 --do------- 1.5 K Do.
ICI BeniQ((-------------- Z NS EW 1 .0 . 75- --do ---- 200 K Do .
Sprengnether--------- Z,NS,EW 15 a 100.0 --do------- 1 .5 K Do.
Timing system:
WWSSN standard.
System response curves: See figure 1, p. 363.
SHORT HISTORY
LVB started operating its WWSSN equipment on December 12, 1961, after several years of operation using other eqUipment.
The JCT site It.'as chosen for its quiet, aseismic characteristics, ., evidenced by the high short-period magnifications.
Q~e [at i QOS ... e[e CQol iOIlQlIS bllt Q!;:;casiQnall},: ceduced in ::>cQ~e to recor:d onl)': the short-l1e riod vertical instrument. Texas
A & M University ron the station from the time of installation until September 1, 1971, when ownership of the host facility
passed by legislative action to Texas Technological University.
309